<div nz-row [nzGutter]='10'>
    <div nz-col nzSpan="4" *ngFor='let item of iconKeys' (click)='onSelectIcon(item)'>
        <app-svg-show [code]='iconData.get(item)' [height]='30' [width]='30'></app-svg-show>{{item}}
    </div>
</div>